Laravel: how to check middleware in blade template

i've created Middleware

php artisan make:middleware isTeacher

in App/Http/isTeacher.php i've placed the check:

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Auth;

class isTeacher
{
  public function handle($request, Closure $next)
  {
    $user = Auth::user();

    if($user && $user->capability == 3)
    {
        return $next($request);
    }
    else
        return redirect('/login');
  }
}

than, i've defined the middleware in app/Http/Kernel.php

protected $routeMiddleware = [
    ...
    'auth.teacher' => \App\Http\Middleware\isTeacher::class,
    ...
];

The question is: how I check the teacher capability in blade template? I'm trying with this:

@if (Auth::isTeacher())

but doesn't work

any help are appreciated

via Chebli Mohamed